Well 6 cages on top of eachother, being used a as weapon most of the time, would be very wobbily, add in a tube in the center :S, and it would be like putting a popsitcle stick in between some gelly and calling it an ice cream.

the cage after cage as been used before, and I believe it was on WcW or something of those sorts and here is the proof:

Quote :

Doomsday Cage matchAlso called a Tower of Doom, the Doomsday Cage is a three story cage—the middle one split into two rooms—all of which house wrestlers. The object of the match is for a team of wrestlers to fight their way from the top cage to the bottom, where pinfalls and submissions come into play.[95][96] The Tower of Doom match took place at the 1988 Great American Bash event.